Huffing alone doesn't look like a reliable way of CTB. More complex methods with use of a duster can work well.
That looks like a cheap clickbait. On the video, the guy probably just passed out, while the story presented under it describes a different episode of inhalations resulting in death (the 21yo guy had been vomiting for two days and died in a hospital where he was alive for about 5 hours).
If you watch the full video on YT, you can notice that the boys around the car are probably just random bystanders who noticed some quite unordinary show and decided to figure out what was going on out of curiosity, rather than "friends" of that inhalant abuser.